Paper Info
Title
Fault-Tolerant Control for Safety of Discrete-Event Systems
Abstract
This paper considers fault-tolerant control that ensures the safety of a discrete-event system. We consider multiple faulty modes. Each faulty mode is modeled by an automaton. These automata, together with the automaton modeling normal mode, describe a discrete-event system with faults. Each faulty mode has some illegal states that must be avoided by control so that the fault can be tolerated. We assume that fault-tolerant control takes actions (disablements) only when the occurrence of a fault is certain. We consider cases of both full event observation and partial event observation. We derive necessary and sufficient conditions for the existence of fault-tolerant control. We also provide formulas and algorithms to calculate control actions if the necessary and sufficient conditions are satisfied. Both offline control synthesis (for full event observation) and online control synthesis (for partial event observation) are investigated. We allow multiple faults as well as single faults.
Year
DOI
Venue
2012
10.1109/TASE.2013.2264809
IEEE Transactions on Automation Science and Engineering
Keywords
DocType
Volume
Fault tolerance,Fault tolerant systems,Discrete-event systems,Valves,Safety,Supervisory control
Conference
11
Issue
ISSN
Citations 
1
1545-5955
7
PageRank 
References 
Authors
0.53
21
2
Name
Order
Citations
PageRank
Shaolong Shu117412.13
Feng Lin217718.34